JP3801304B2 - Pipe joint gripper in optical cable connection storage cabinet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pipe joint gripping tool used when jointing pipes of a pipe cable and a floor system pipe cable in a premises in an optical cable connection storage cabinet used for connection, termination and wiring of optical fibers and the like. It is.
[0002]
[Prior art]
Generally, when connecting an optical fiber core cable and a pipe cable of an infeed cable containing pipes in a cabinet, it is essential to fix the optical fiber core and pipe after connecting them. A gripping tool for holding a connection portion of a wire or a pipe by various means is used.
[0003]
[Problems to be solved by the invention]
However, in conventional optical cable junction box cabinets, pipe cables, for example, pipe pipes and floor system pipe cables are often gripped by holders using pipe joints. It is required to be easy to remove and have good workability, and it is difficult to come off when it is fastened, and the holding function must be safe without rattling. It is required to be realized with a low-cost configuration.
The present invention is intended to provide a pipe joint gripping tool that can sufficiently satisfy these conventional requirements, and enhances the function of fixing the pipe cable to the cabinet when replacing and expanding the pipe connection, thereby ensuring safe connection processing work. The purpose of the present invention is to provide a pipe joint gripping tool in a cabinet for storing an optical cable connection portion with a simple structure and low cost.
[0004]
[Means for Solving the Problems]
The present invention detachably attaches a pipe joint capable of fitting and connecting pipes of a pipe cable fixed in a cabinet to a gripping tool provided in the cabinet, and has a small diameter formed in the pipe joint. A receiving support plate member formed with a guide groove for inserting the portion, and having a pair of locking projections projecting on both sides of the outer periphery of the small diameter portion of the pipe joint, and turning the locking projections of the pipe joint engagement recess capable sealed fitting engagement with are those that are oppositely deployed as hook-shaped notch with a circular arc edge of the guide groove of the supporting plate member.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In the optical cable connection portion storage cabinet according to the present invention, the door is opened, the lead-in pipe cable is introduced into the cable introduction portion of the case body through the cable cover, and the pipe cable is attached to the cable gripping portion provided in the cable introduction portion. The pipe cable pipes are gripped and connected by a pipe joint, and the small diameter portion of the pipe joint is inserted into a guide groove in the receiving support plate member of the gripping tool and rotated, and a pair of locking protrusions provided on the small diameter portion is provided. The floor-type pipe cable is routed out of the case body through the floor cable lead-out portion and routed. In the cabinet, if necessary, the cable core of the mounting cable is used with the connector of the connection part being stored by the connection part storage part of the on-premise cable batch storage product. It is easy to replace and expand the core connection. The gripping operation of the pipe connection portion of the pipe cable is simple with the gripping tool, and the fastening function is enhanced, so that the connection and wiring work can be performed safely and easily.
[0006]
【Example】
In the following, an embodiment of the present invention will be described with reference to FIG. 1 to FIG. 4. A pipe joint 10 is provided in the cabinet 3 for fitting and connecting the pipes C ₁ of the pipe cables C fixed in the cabinet 3. The pipe joint gripping tool 11 is detachably mounted, and includes a receiving support plate member 13 having a guide groove 12 into which a small diameter portion provided in the pipe joint 10 is inserted. a pair of locking projections 10 1 projecting from the diameter outer peripheral _sides, has a 10 _1, engagement recess 14 that can hermetically fitted engagement of the engaging protrusion 10 ₁ by the rotation of the pipe joint 10 is supporting plates The pipe joint gripping tool 11 is disposed opposite to the guide groove 12 of the member 13 as a bowl-shaped notch having an arc edge.
[0007]
In this case, the receiving support plate member 13 is a bent plate having a substantially L-shaped cross section, and a plurality of mounting holes 15 and the guide grooves 12 are arranged in parallel, and the guide grooves 12 are spaced apart in the vertical direction. A plurality of locking recesses 14 are provided, that is, hook-shaped notches with arc edges on which the locking protrusions 10 ₁ , 10 ₁ on both sides of the outer periphery of the thin-diameter portion of the pipe joint 10 can be rotated 90 degrees face each other. A plurality of pipe joints 10 can be locked and arranged in the vertical direction. Moreover, the engagement recess 14, the guide groove 12 slightly to be shifted up and down counter deployed locking projection 10 so as to form a narrow portion _1, 10 ₁ of the pipe joint 10 is the guide groove by rotation It is good to make it the form which latches so that it may not escape from 12.
[0008]
The receiving support plate member 13 is provided on the multi-stage mounting plate 16 with an interval in the vertical direction, and a plurality of guide grooves 12 are juxtaposed on each support plate member 13 in the horizontal and vertical directions. In addition, a large number of pipe joints 10 can be arranged at high density.
Further, the pipe cable C includes a private branch cable gripper 1 to be immobilized in the cabinet 3, is introduced to the wiring cabinet 3 and a floor-based pipe cable gripper 2 connected to butt the pipe C ₁ together with And is used in combination with the cabinet 3 having the pre-stored core wire storage article A.
[0009]
Furthermore, connecting the door 4 in the cabinet 3 provided with a cable gripper 1 and the floor cable gripper 2 is provided to be freely opened and closed with the hinge portion 4 _1, it can support the connection connected to the branched core wire end from the cable And the internal core wire batch storage article A including the extra length storage portion 9 for storing the extra length of the core wire extending from the connecting portion, and the cabinet 3 includes a closing plate, For example, a seal plate 7 with slits is provided, and a pipe joint gripping tool 11 and a lock mechanism 22 having a lock 23 for preventing the door 4 from being released are provided. It can be installed in wall corners and side wall racks to make it easier for users to deal with. The cabinet 3 is used by opening the door 4 and processing the cable connection end, and closing the door 4 after the operation.
[0010]
5 and 6, as the pipe joint gripping tool 11, the receiving support plate member 13 is provided in a cantilever manner on the multi-stage mounting plate 16 with an interval in the vertical direction. A plurality of guide grooves 12 arranged side by side so that a large number of pipe joints 10 are arranged in a high density in the horizontal and vertical directions, and the cabinet 3 in which the internal core wire collective storage article A and the cable gripping part B are installed. Used for
[0011]
【The invention's effect】
The present invention detachably attaches a pipe joint capable of inserting and connecting pipes of a pipe cable fixed in a cabinet to a gripping tool provided in the cabinet, and has a small diameter provided in the pipe joint. A receiving support plate member formed with a guide groove for inserting the portion, and having a pair of locking projections projecting on both sides of the outer periphery of the small diameter portion of the pipe joint, and turning the locking projections of the pipe joint Since the locking recesses that can be fitted and locked by the opposite are arranged as saddle- shaped notches with arc edges in the guide groove of the support plate member, it is easy to install and remove the pipe connecting part connected by the pipe joint Workability is remarkably smooth and good, and it is hard to come off after fastening and does not move or move, and the holding function is stable. It is safe and can be easily replaced and expanded, and the wiring can be easily understood at a glance. Good identification is possible. In addition, any pipe can be handled and handled easily. In addition, since only the pipe connecting portion needs to be fixed, an extra holding member is not required, and there are practical effects such as simple construction, easy manufacture, and low cost production.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention, (a) is a side view thereof, and (b) is a front view.
2 shows a pipe joint used in the example of FIG. 1, in which (a) is a perspective view thereof, (b) is a central longitudinal sectional view, and (c) is a central transverse sectional view.
3 shows a longitudinal sectional view of the operating state of the example of FIG. 2, wherein (a) shows when the pipe joint is inserted, (b) shows just before installation, and (c) shows when installation is completed.
FIG. 4 is a front view showing a state in which the present invention is used and the inside of the cover is removed and the inside is shown.
5A and 5B show another embodiment of the present invention, in which FIG. 5A is a side view and FIG. 5B is a front view.
6 is a front view of the example of FIG. 5 in use.
[Explanation of symbols]
A Collective article for inner core wire B Cable gripping part C Cable C ₁ Pipe 1 Cable gripping tool 2 Floor cable gripping tool 3 Cabinet 4 Door 7 Seal plate 8 Connection part storage part 9 Extra length storage part 10 Pipe joint 10 ₁ Locking protrusion Part 11 Pipe joint gripping tool 12 Guide groove 13 Receiving support plate member 14 Locking recess 15 Mounting hole 16 Mounting plate

Claims (4)

A pipe joint 10 capable of fitting and connecting pipes of the pipe cable C fixed in the cabinet 3 is detachably attached to a gripping tool 11 provided in the cabinet 3. comprising a receiving support plate member 13 formed with guide grooves 12 for inserting the diameter, and has a pair of locking projections 10 _1, 10 ₁ projecting from the outer peripheral sides small diameter portion of the pipe joint 10, the engagement and characterized in that the stop protrusion 10 _first locking recess 14 which can hermetically fitted engagement by the rotation of the pipe joint 10 is opposed deployed as hook-shaped notch with a circular arc edge of the guide groove 12 of the supporting plate member 13 Pipe joint gripping tool in optical cable connection storage cabinet.   The pipe joint gripping tool according to claim 1, wherein the receiving support plate member 13 is a bent plate having a substantially L-shaped cross section, and a plurality of mounting holes 15 and a plurality of the guide grooves are arranged in parallel.   The pipe joint gripping tool according to claim 1 or 2, wherein the receiving support plate member (13) has a guide groove (12) provided with a plurality of locking recesses (14) at intervals in the vertical direction.   The pipe according to claim 1 or 2, wherein the receiving support plate member (13) is provided on a plurality of mounting plates at intervals in the vertical direction, and a plurality of guide grooves (12) are arranged in parallel on each support plate member (13). Joint gripper.

Images